CA2305493A1 - Method for assessing the degradation of a video image input by a coding and/or storage and/or transmission system - Google Patents

Method for assessing the degradation of a video image input by a coding and/or storage and/or transmission system Download PDF

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Publication number
CA2305493A1
CA2305493A1 CA002305493A CA2305493A CA2305493A1 CA 2305493 A1 CA2305493 A1 CA 2305493A1 CA 002305493 A CA002305493 A CA 002305493A CA 2305493 A CA2305493 A CA 2305493A CA 2305493 A1 CA2305493 A1 CA 2305493A1
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CA
Canada
Prior art keywords
degradation
spatial activity
video image
assessing
coding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002305493A
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French (fr)
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CA2305493C (en
Inventor
Jamal Baina
Pierre Bretillon
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Telediffusion de France ets Public de Diffusion
Original Assignee
Telediffusion De France
Jamal Baina
Pierre Bretillon
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Publication date
Application filed by Telediffusion De France, Jamal Baina, Pierre Bretillon filed Critical Telediffusion De France
Publication of CA2305493A1 publication Critical patent/CA2305493A1/en
Application granted granted Critical
Publication of CA2305493C publication Critical patent/CA2305493C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

Abstract

L'invention concerne un procédé d'évaluation de la dégradtion d'une image vidéo codée par blocs de points images ou pixels. Il comporte les étapes suivantes: (a) sélectionner une image d'entrée et déterminer son activité spatiale (SA) dans une fenêtre d'analyse selon les sous-étapes suivantes: (i) déterminer pour chaque bloc (n, m) les coefficients transformés Fn, m (i, y) par une transformée par blocs; (ii) déterminer à partir des coefficients transformés Fn, m (i, y) l'activité spatiale bsa de chaque bloc; (iii) déterminer l'activité spatiale globale SA1 de la fenêtre d'analyse; (b) sélectionner l'image de sortie correspondant à l'image d'entrée et déterminer ladite activité spatiale globale SA2 de l'image de sortie; (c) comparer les activités spatiales (SA2) et (SA1).The invention relates to a method for evaluating the degradation of a video image coded by blocks of image points or pixels. It comprises the following steps: (a) select an input image and determine its spatial activity (SA) in an analysis window according to the following sub-steps: (i) determine for each block (n, m) the coefficients transforms Fn, m (i, y) by a block transform; (ii) determine from the transformed coefficients Fn, m (i, y) the spatial activity bsa of each block; (iii) determine the overall spatial activity SA1 of the analysis window; (b) selecting the output image corresponding to the input image and determining said overall spatial activity SA2 of the output image; (c) compare the space activities (SA2) and (SA1).

CA002305493A 1997-10-06 1998-10-01 Method for assessing the degradation of a video image input by a coding and/or storage and/or transmission system Expired - Fee Related CA2305493C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9712414A FR2769453B1 (en) 1997-10-06 1997-10-06 METHOD FOR EVALUATING THE DEGRADATION OF A VIDEO IMAGE INTRODUCED BY A CODING AND / OR STORAGE AND / OR DIGITAL TRANSMISSION SYSTEM
FR97/12414 1997-10-06
PCT/FR1998/002100 WO1999018736A1 (en) 1997-10-06 1998-10-01 Method for assessing the degradation of a video image input by a coding and/or storage and/or transmission system

Publications (2)

Publication Number Publication Date
CA2305493A1 true CA2305493A1 (en) 1999-04-15
CA2305493C CA2305493C (en) 2006-12-12

Family

ID=9511855

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002305493A Expired - Fee Related CA2305493C (en) 1997-10-06 1998-10-01 Method for assessing the degradation of a video image input by a coding and/or storage and/or transmission system

Country Status (7)

Country Link
US (1) US6823009B1 (en)
EP (1) EP1020085B1 (en)
JP (1) JP4126481B2 (en)
CA (1) CA2305493C (en)
DE (1) DE69805642T2 (en)
FR (1) FR2769453B1 (en)
WO (1) WO1999018736A1 (en)

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FR2814895B1 (en) * 2000-10-03 2003-01-31 Telediffusion De France Tdf METHOD FOR DETECTION OF INTRUSION INTO A REMOTE MONITORING SYSTEM
FR2814896B1 (en) * 2000-10-03 2003-01-31 Telediffusion De France Tdf INTRUSION DETECTION METHOD, IN PARTICULAR BY POINTING AND / OR OBSTRUCTION OF A CAMERA, IN A REMOTE MONITORING SYSTEM
JP4492992B2 (en) * 2001-02-21 2010-06-30 Ｋｄｄｉ株式会社 Marker signal deterioration detection method and image quality evaluation apparatus for image quality evaluation
JP4662224B2 (en) * 2001-09-07 2011-03-30 Ｋｄｄｉ株式会社 Transmission image quality monitoring device
US6943827B2 (en) * 2001-04-16 2005-09-13 Kddi Corporation Apparatus for monitoring quality of picture in transmission
FR2835124B1 (en) 2002-01-24 2004-03-19 Telediffusion De France Tdf METHOD FOR SYNCHRONIZING TWO DIGITAL DATA STREAMS OF THE SAME CONTENT
US6647152B2 (en) * 2002-01-25 2003-11-11 Thomson Licensing S.A. Method and system for contouring reduction
FR2847411B1 (en) * 2002-11-15 2005-01-14 Telediffusion De France Tdf METHOD AND SYSTEM FOR MEASURING DEGRADATION OF A VIDEO IMAGE INTRODUCED BY FLOW REDUCTION ENCODING
US7673145B2 (en) * 2003-03-07 2010-03-02 Nippon Telephone And Telegraph Corporation Biometric image collation apparatus and collation method therefor
JP2005020294A (en) * 2003-06-25 2005-01-20 Sony Corp Block distortion reducing apparatus
FR2879387B1 (en) * 2004-12-15 2007-04-27 Tdf Sa METHOD FOR TRANSMITTING A VARIABLE BINARY RATE THROUGH A TRANSMISSION CHANNEL.
WO2006099743A1 (en) * 2005-03-25 2006-09-28 Algolith Inc. Apparatus and method for objective assessment of dct-coded video quality with or without an original video sequence
US9497476B2 (en) * 2013-04-05 2016-11-15 Sharp Kabushiki Kaisha Image decoding apparatus
WO2018222094A1 (en) * 2017-05-31 2018-12-06 Saab Ab Method and system for surveying the functionality of a video link from an aircraft to an object

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US3971888A (en) 1975-04-02 1976-07-27 Bell Telephone Laboratories, Incorporated Synchronization system for variable length encoded signals
US5231484A (en) * 1991-11-08 1993-07-27 International Business Machines Corporation Motion video compression system with adaptive bit allocation and quantization
US5214508A (en) * 1992-02-14 1993-05-25 Tektronix, Inc. Spatial bandwidth testing for digital data-compressed video systems
WO1993019434A1 (en) * 1992-03-17 1993-09-30 Zoran Corporation Image compression coder having improved bit rate control and block allocation
JPH08509826A (en) 1993-02-19 1996-10-15 エロネックス・テクノロジーズ・インコーポレーテッド Compressed BIOS system
JP3163837B2 (en) 1993-04-16 2001-05-08 ソニー株式会社 Digital video signal encoding device
WO1995003674A1 (en) * 1993-07-19 1995-02-02 British Telecommunications Public Limited Company Detecting errors in video images
KR950010632A (en) * 1993-09-17 1995-04-28 배순훈 Video encoder
JPH07322252A (en) 1994-05-23 1995-12-08 Canon Inc Image coder
GB9413001D0 (en) 1994-06-28 1994-08-17 Ntl Methods for the synchronisation of successive digital video compression/decompression systems
JP3025415B2 (en) * 1995-01-20 2000-03-27 ケイディディ株式会社 Digital compression / reproduction image quality evaluation device
US5579050A (en) 1995-03-09 1996-11-26 Daewoo Electronics Co., Ltd. Apparatus for encoding a video signal using a search grid
US5650860A (en) * 1995-12-26 1997-07-22 C-Cube Microsystems, Inc. Adaptive quantization
US6141448A (en) 1997-04-21 2000-10-31 Hewlett-Packard Low-complexity error-resilient coder using a block-based standard

Also Published As

Publication number Publication date
JP4126481B2 (en) 2008-07-30
JP2001519632A (en) 2001-10-23
DE69805642D1 (en) 2002-07-04
FR2769453A1 (en) 1999-04-09
EP1020085B1 (en) 2002-05-29
US6823009B1 (en) 2004-11-23
WO1999018736A1 (en) 1999-04-15
FR2769453B1 (en) 2000-01-07
DE69805642T2 (en) 2003-02-06
CA2305493C (en) 2006-12-12
EP1020085A1 (en) 2000-07-19

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Effective date: 20181001